An oxidation-coupled reactor

Abstract

This invention belongs to the field of wastewater treatment technology, and in particular to an oxidation coupling reactor, comprising a tank. An inlet assembly is fixedly installed on the left side wall of the tank near the lower side. Two conical hoppers are fixedly installed from top to bottom between the tank side walls below the inlet assembly, and each conical hopper is equipped with a slag discharge mechanism. A first gas distribution mechanism is fixedly installed between the inner walls of the tank above the inlet assembly, and a second gas distribution mechanism is installed between the inner walls of the tank above the first gas distribution mechanism. A catalytic mechanism is provided on the upper surface of the second gas distribution mechanism. This invention allows all raw water to enter a pressurized tank, which contains a modular ozone catalyst reaction zone. The high-pressure environment significantly improves ozone solubility, efficiently generating hydroxyl radicals. Oxidation and flotation are coupled, saving space and equipment investment. The modular catalyst is replaceable and adaptable to different water qualities, enabling the discharge of impurities from the coupling reactor without shutting down the reactor.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an oxidation coupling reactor. Background Technology

[0002] Ozone oxidation is a common method in the advanced treatment of industrial wastewater. Ozone oxidation utilizes the hydroxyl radicals generated by the ozone oxidation reaction to strongly oxidize and remove recalcitrant organic matter in the wastewater. Ozone oxidation treatment mainly occurs after the biochemical reactions in the wastewater. Large organic molecules, such as benzene rings, which are involved in biochemical treatment, can be degraded and ring-opened during the ozone oxidation stage, ultimately further reducing the COD of the wastewater and adjusting its biodegradability. In the process of removing recalcitrant organic matter, ozone oxidation also has decolorizing and disinfecting effects. Ozone oxidation is often used in conjunction with catalysts, which can significantly improve its efficiency.

[0003] Currently, conventional ozone oxidation systems typically consist of an ozone generator, a contact reaction tower, and a tail gas destruction device. They rely on direct ozone oxidation, resulting in low mass transfer efficiency and limited hydroxyl radical yield. Traditional dissolved air flotation systems consist of a dissolved air tank, a depressurizer, and a flotation tank. The dissolved air source is air, and suspended matter is only physically adsorbed through microbubbles. These two systems are independent units and do not achieve deep coupling. Therefore, we propose an oxidation coupling reactor to solve the above problems. Summary of the Invention

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an oxidation coupling reactor, which solves the problems mentioned in the background section.

[0005] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: An oxidation coupling reactor includes a tank. An inlet assembly is fixedly installed on the left side wall of the tank near its lower side. Two conical hoppers are fixedly installed from top to bottom between the tank side walls below the inlet assembly, and each conical hopper is equipped with a slag discharge mechanism. A first gas distribution mechanism is fixedly installed between the inner walls of the tank above the inlet assembly. A second gas distribution mechanism is installed between the inner walls of the tank above the first gas distribution mechanism. A catalytic mechanism is provided on the upper surface of the second gas distribution mechanism. An outlet pipe is fixedly installed on the right side wall of the tank near its upper side. A release device and a pressure gauge are installed from bottom to top on the left side wall of the tank near its upper edge. A sealing cap is threaded onto the upper surface of the tank.

[0006] Furthermore, a rectangular notch is provided on the lower edge of the left side wall of the tank, corresponding to the position of the slag discharge mechanism.

[0007] Furthermore, the slag discharge mechanism includes a circular sleeve, a cylindrical cylinder, a slag discharge pipe, an electric telescopic rod, a vertical rod, a first plug, and a second plug. The circular sleeve is fixedly installed at the middle of the upper conical hopper, and the cylindrical cylinder is fixedly installed at the middle of the lower conical hopper. The upper surface of the cylindrical cylinder is an open structure. The slag discharge pipe is installed obliquely at the lower edge of the left side wall of the cylindrical cylinder. The electric telescopic rod is fixedly installed on the lower surface of the cylindrical cylinder. A vertical rod is fixedly installed on the upper surface of the output shaft of the electric telescopic rod. A first plug is fixedly installed on the vertical rod at a position corresponding to the lower side of the circular sleeve, and a second plug is fixedly installed on the vertical rod corresponding to the cylindrical cylinder.

[0008] Furthermore, a through hole is provided on the lower side wall of the cylinder at a position corresponding to the output shaft of the electric telescopic rod.

[0009] Furthermore, the first gas distribution mechanism includes a gas distribution pipe, an explosion head, and a connecting pipe. The gas distribution pipe is fixedly installed between the inner walls of the tank. The upper surface of the gas distribution pipe is uniformly provided with explosion heads. The right side of the gas distribution pipe is fixedly installed with a connecting pipe, and the other end of the connecting pipe is inserted into the outer side wall of the tank. The second gas distribution mechanism has the same structure as the first gas distribution mechanism.

[0010] Furthermore, the catalytic mechanism includes a placement plate, a rectangular opening, and a catalyst module. The placement plate is fixedly installed between the inner walls of the tank, and a rectangular opening is provided on the placement plate. The catalyst module is placed on the upper surface of the placement plate.

[0011] (III) Beneficial Effects Compared with the prior art, the present invention provides an oxidation coupling reactor, which has the following beneficial effects: This invention involves the entire raw water entering a pressurized tank. A first and second gas distribution mechanism allow oxygen and ozone to enter the tank. The tank contains a catalyst module reaction zone. The high-pressure environment significantly improves ozone solubility, efficiently generating hydroxyl radicals. Oxidation and flotation are coupled, saving space and equipment investment. The modular catalyst can be replaced to adapt to different water qualities. Impurities in the coupled reactor can be discharged without shutting down the system. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic cross-sectional view of the tank body of this utility model; Figure 3 This is a cross-sectional view of the slag discharge mechanism of this utility model.

[0013] In the diagram: 1. Tank body; 2. Water inlet assembly; 3. Conical hopper; 4. Slag discharge mechanism; 401. Circular sleeve; 402. Cylinder; 403. Slag discharge pipe; 404. Electric telescopic rod; 405. Vertical rod; 406. First plug; 407. Second plug; 5. First gas distribution mechanism; 501. Gas distribution pipe; 502. Aeration head; 503. Connecting pipe; 6. Second gas distribution mechanism; 7. Catalytic mechanism; 701. Placement plate; 702. Rectangular opening; 703. Catalyst module; 8. Water outlet pipe; 9. Release device; 10. Pressure gauge; 11. Sealing cap; 12. Rectangular notch; 13. Through hole. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example like Figures 1-3 As shown in the figure, an oxidation coupling reactor according to one embodiment of the present invention includes a tank 1. A water inlet assembly 2 is fixedly installed on the left side wall of the tank 1 near its lower side. The water inlet assembly 2 consists of an inlet pipe and an outlet head. Two conical hoppers 3 are fixedly installed sequentially from top to bottom between the side walls of the tank 1 below the water inlet assembly 2, and a slag discharge mechanism 4 is provided on the conical hoppers 3. A first gas distribution mechanism 5 is fixedly installed between the inner walls of the tank 1 above the water inlet assembly 2. The tank above the first gas distribution mechanism 5... A second gas distribution mechanism 6 is installed between the inner walls of the tank 1. A catalytic mechanism 7 is provided on the upper surface of the second gas distribution mechanism 6. A water outlet pipe 8 is fixedly installed on the right side wall of the tank 1 near the upper side. A release device 9 and a pressure gauge 10 are installed sequentially from bottom to top on the left side wall of the tank 1 near the upper edge. The release device 9 is connected to an ozone destroyer and can destroy and release residual ozone. The pressure gauge 10 displays the pressure inside the tank 1. A sealing cap 11 is threaded onto the upper surface of the tank 1.

[0016] like Figure 1 and Figure 2 As shown, in some embodiments, a rectangular notch 12 is provided on the lower edge of the left side wall of the tank 1, corresponding to the position of the slag discharge mechanism 4.

[0017] In this embodiment, the rectangular notch 12 facilitates the cleaning of impurities discharged by the slag discharge mechanism 4.

[0018] like Figure 3As shown, in some embodiments, the slag discharge mechanism 4 includes a circular sleeve 401, a cylindrical cylinder 402, a slag discharge pipe 403, an electric telescopic rod 404, a vertical rod 405, a first plug 406, and a second plug 407. The circular sleeve 401 is fixedly installed at the middle of the upper conical hopper 3, and the cylindrical cylinder 402 is fixedly installed at the middle of the lower conical hopper 3. The upper surface of the cylindrical cylinder 402 is an open structure. The slag discharge pipe 403 is installed obliquely at the lower edge of the left side wall of the cylindrical cylinder 402. The electric telescopic rod 404 is fixedly installed on the lower surface of the cylindrical cylinder 402. The vertical rod 405 is fixedly installed on the upper surface of the output shaft of the electric telescopic rod 404. The first plug 406 is fixedly installed on the vertical rod 405 at a position corresponding to the lower side of the circular sleeve 401. The second plug 407 is fixedly installed on the vertical rod 405 corresponding to the cylindrical cylinder 402.

[0019] In this embodiment, the output shaft of the electric telescopic rod 404 drives the first plug 406 to move upward through the vertical rod 405. When the first plug 406 enters the sleeve 401, it seals the sleeve 401. At this time, the second plug 407 does not detach from the cylinder 402 and continues to seal the cylinder 402. When the first plug 406 continues to move upward with the vertical rod 405 to seal the sleeve 401, the second plug 407 detaches from the upper surface of the cylinder 402. Impurities on the lower conical hopper 3 flow into the cylinder 402 and are then discharged through the slag discharge pipe 403. After the slag discharge is completed, the output shaft of the electric telescopic rod 404 drives the first plug 406 and the second plug 407 to move downward through the vertical rod 405. The second plug 407 first enters the cylinder 402 and seals the cylinder 402. The first plug 406 then detaches from the sleeve 401, allowing impurities in the tank 1 to flow into the lower conical hopper 3 through the upper conical hopper 3 and the upper sleeve 401.

[0020] like Figure 3 As shown, in some embodiments, a through hole 13 is provided on the lower side wall of the cylinder 402 at a position corresponding to the output shaft of the electric telescopic rod 404.

[0021] In this embodiment, the through hole 13 facilitates the up-and-down movement of the output shaft of the electric telescopic rod 404 on the lower side wall of the cylinder 402.

[0022] like Figure 2 As shown, in some embodiments, the first gas distribution mechanism 5 includes a gas distribution pipe 501, an explosion head 502, and a connecting pipe 503. The gas distribution pipe 501 is fixedly installed between the inner walls of the tank body 1. The explosion heads 502 are evenly arranged on the upper surface of the gas distribution pipe 501. The connecting pipe 503 is fixedly installed on the right side of the gas distribution pipe 501, and the other end of the connecting pipe 503 is inserted into the outer side of the side wall of the tank body 1. The second gas distribution mechanism 6 has the same structure as the first gas distribution mechanism 5.

[0023] In this embodiment, the connecting pipe 503 is connected to the air outlet of the gas storage tank through a pipe, and the air inlet of the gas storage tank is connected to the air compressor, so that the compressed air enters the air distribution pipe 501 through the connecting pipe 503, and is then blown into the water in the tank 1 through the aeration head 502 on the upper surface of the air distribution pipe 501. The second air distribution mechanism 6 is connected to the air outlet of the ozone generator, so that the ozone enters the water in the tank 1 through the second air distribution mechanism 6.

[0024] like Figure 2 As shown, in some embodiments, the catalytic mechanism 7 includes a placement plate 701, a rectangular opening 702, and a catalyst module 703. The placement plate 701 is fixedly installed between the inner walls of the tank 1. The placement plate 701 has a rectangular opening 702, and the catalyst module 703 is placed on the upper surface of the placement plate 701.

[0025] In this embodiment, the placement plate 701 is used to place the catalyst module 703, and the rectangular opening 702 allows water and gas to pass through the catalyst module 703 and be catalyzed. The catalyst module 703 has a cylindrical structure and is attached to the side wall of the tank 1.

[0026] During use, wastewater flows into tank 1 through inlet assembly 2. The connecting pipe 503 in the first gas distribution mechanism 5 is connected to the outlet of the gas storage tank via a pipeline. The inlet of the gas storage tank is connected to an air compressor, allowing compressed air to enter the gas distribution pipe 501 through the connecting pipe 503. The compressed air is then blown into the water inside tank 1 through the aeration head 502 on the upper surface of the gas distribution pipe 501. The second gas distribution mechanism 6 connects to the outlet of the ozone generator, allowing ozone to enter the water inside tank 1 through the second gas distribution mechanism 6, creating high pressure (0.4–0.6 MPa). Oxygen and ozone react in the high-pressure wastewater. Water and gas then flow through the rectangular opening 702 in the catalytic mechanism 7 to the catalyst module 703. The catalyst module 703 creates a chemical reaction zone in the wastewater. As the water flows through the catalyst reaction zone, ozone undergoes a chain reaction on the catalyst surface: O3 + catalyst → OH + O2 → OX3 + catalyst → OH + OX2 to efficiently generate hydroxyl radicals. Wastewater containing saturated ozone and ·OH flows into the flotation tank through the effluent pipe 8. Supersaturated gas is released as 20–50 μm microbubbles. The surface of the microbubbles carries ·OH, which oxidizes and degrades dissolved organic matter during the ascent, while adsorbing colloids / suspended solids to form scum. The scum is scraped off, and the clean water is discharged from the bottom. Oxidation and flotation are coupled, saving space and equipment investment. Opening the sealing cover 11 allows the catalyst module 703 to be replaced to adapt to different water qualities. During the entire process, larger impurities in the tank 1 flow through the upper conical hopper 3 and the circular sleeve 401 to the lower conical hopper 3. Without stopping the machine, the output shaft of the electric telescopic rod 404 in the scum discharge mechanism 4 drives the first plug 406 to move upward through the vertical rod 405. When the first plug 406 moves upward... 6. The first plug 406 enters the sleeve 401 and seals the sleeve 401. At this time, the second plug 407 is still in the cylinder 402 and continues to seal the cylinder 402. When the first plug 406 continues to move upward with the vertical rod 405 to seal the sleeve 401, the second plug 407 is removed from the upper surface of the cylinder 402. The impurities on the lower conical hopper 3 flow into the cylinder 402 and are then discharged through the slag discharge pipe 403. After the slag discharge is completed, the output shaft of the electric telescopic rod 404 drives the first plug 406 and the second plug 407 to move downward through the vertical rod 405. The second plug 407 first enters the cylinder 402 and seals the cylinder 402. The first plug 406 then leaves the sleeve 401, allowing the impurities in the tank 1 to flow into the lower conical hopper 3 through the sleeve 401 on the upper conical hopper 3, thus discharging the impurities in the coupled reactor.

[0027] In summary, this oxidation coupling reactor allows all raw water to enter the pressurized tank 1, which contains a modular ozone catalyst reaction zone. The high-pressure environment significantly improves ozone solubility and efficiently generates hydroxyl radicals. The oxidation and flotation are coupled, saving space and equipment investment. The modular catalyst can be replaced to adapt to different water qualities, and impurities in the coupling reactor can be discharged without shutting down the reactor.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An oxidation coupling reactor, comprising a tank (1), characterized in that: A water inlet assembly (2) is fixedly installed on the left side wall of the tank (1) near the lower side. Two conical buckets (3) are fixedly installed from top to bottom between the side walls of the tank (1) below the water inlet assembly (2), and a slag discharge mechanism (4) is provided on the conical buckets (3). A first gas distribution mechanism (5) is fixedly installed between the inner walls of the tank (1) above the water inlet assembly (2). A second gas distribution mechanism (6) is installed between the inner walls of the tank (1) above the first gas distribution mechanism (5). A catalytic mechanism (7) is provided on the upper surface of the second gas distribution mechanism (6). A water outlet pipe (8) is fixedly installed on the right side wall of the tank (1) near the upper side. A release device (9) and a pressure gauge (10) are installed from bottom to top on the left side wall of the tank (1) near the upper edge. A sealing cap (11) is threaded onto the upper surface of the tank (1).

2. The oxidation coupling reactor according to claim 1, characterized in that: A rectangular notch (12) is provided on the lower edge of the left side wall of the tank (1) corresponding to the position of the slag discharge mechanism (4).

3. An oxidation coupling reactor according to claim 1, characterized in that: The slag discharge mechanism (4) includes a circular sleeve (401), a cylindrical tube (402), a slag discharge pipe (403), an electric telescopic rod (404), a vertical rod (405), a first plug (406), and a second plug (407). The circular sleeve (401) is fixedly installed in the middle of the upper conical hopper (3), and the cylindrical tube (402) is fixedly installed in the middle of the lower conical hopper (3). The upper surface of the cylindrical tube (402) is an open structure. The left side of the cylindrical tube (402) is open. A slag discharge pipe (403) is installed at an angle on the lower edge of the wall. The electric telescopic rod (404) is fixedly installed on the lower surface of the cylinder (402). A vertical rod (405) is fixedly installed on the upper surface of the output shaft of the electric telescopic rod (404). A first plug (406) is fixedly installed on the vertical rod (405) at a position corresponding to the lower side of the sleeve (401). A second plug (407) is fixedly installed on the vertical rod (405) corresponding to the cylinder (402).

4. An oxidation coupling reactor according to claim 3, characterized in that: A through hole (13) is provided on the lower side wall of the cylinder (402) at a position corresponding to the output shaft of the electric telescopic rod (404).

5. An oxidation coupling reactor according to claim 1, characterized in that: The first gas distribution mechanism (5) includes a gas distribution pipe (501), an explosion head (502) and a connecting pipe (503). The gas distribution pipe (501) is fixedly installed between the inner walls of the tank (1). The explosion heads (502) are evenly arranged on the upper surface of the gas distribution pipe (501). The connecting pipe (503) is fixedly installed on the right side of the gas distribution pipe (501), and the other end of the connecting pipe (503) is inserted into the outer side of the side wall of the tank (1). The second gas distribution mechanism (6) has the same structure as the first gas distribution mechanism (5).

6. An oxidation coupling reactor according to claim 1, characterized in that: The catalytic mechanism (7) includes a placement plate (701), a rectangular opening (702), and a catalyst module (703). The placement plate (701) is fixedly installed between the inner walls of the tank (1). A rectangular opening (702) is provided on the placement plate (701), and the catalyst module (703) is placed on the upper surface of the placement plate (701).

Images